/* NACRE — Sand & Ochre Luxury Theme (Concept 3) */

:root {
    /* Colors */
    --nacre-sand-light: #F2ECE4;
    --nacre-sand-deep: #EAE2D5;
    --nacre-bronze: #2A2724;
    --nacre-bronze-muted: #5C544E;
    --nacre-limestone: #9C9284;
    --nacre-limestone-light: rgba(156, 146, 132, 0.1);
    --nacre-gold: #C9AF84;
    --nacre-gold-muted: rgba(201, 175, 132, 0.15);
    --nacre-travertine-border: rgba(42, 39, 36, 0.08);
    --nacre-white: #FAF9F6;
    
    /* Typography */
    --nacre-font-serif: 'Cormorant Garamond', Georgia, serif;
    --nacre-font-sans: 'Inter', sans-serif;
    
    /* System Constants */
    --transition-standard: 350ms cubic-bezier(0.25, 0.8, 0.25, 1);
    --transition-fast: 150ms ease-out;
}

/* Global Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html, body {
    height: 100%;
    background-color: var(--nacre-sand-light);
    color: var(--nacre-bronze);
    font-family: var(--nacre-font-sans);
    -webkit-font-smoothing: antialiased;
    overflow: hidden;
}

body {
    padding: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* 1px Travertine Grid Overlay (Architectural draft line aesthetic) */
.grid-frame {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    pointer-events: none;
    z-index: 100;
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr 1fr;
}
.grid-frame .line-v {
    grid-row: 1 / span 2;
    border-right: 1px solid var(--nacre-travertine-border);
    width: 1px;
    height: 100%;
}
.grid-frame .line-v:nth-child(2) {
    display: none; /* simple center split */
}
.grid-frame .line-h {
    grid-column: 1 / span 2;
    border-bottom: 1px solid var(--nacre-travertine-border);
    height: 1px;
    width: 100%;
}

/* Main Spreads Composition */
.atelier-container {
    width: 100%;
    max-width: 1440px;
    height: calc(100vh - 3rem);
    background-color: var(--nacre-sand-light);
    border: 1px solid var(--nacre-bronze);
    padding: 2.5rem 3.5rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    position: relative;
    box-shadow: 0 30px 70px rgba(42, 39, 36, 0.08);
}

/* Technical Telemetry Header */
.telemetry-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--nacre-travertine-border);
    padding-bottom: 1rem;
    font-size: 0.75rem;
    letter-spacing: 0.15em;
    font-weight: 500;
    color: var(--nacre-limestone);
}
.telemetry-left {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}
.coord-stamp {
    font-family: monospace;
}
.status-indicator {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--nacre-bronze);
    font-weight: 600;
}
.status-indicator .dot {
    width: 5px;
    height: 5px;
    background-color: var(--nacre-gold);
    border-radius: 50%;
    display: inline-block;
    box-shadow: 0 0 8px var(--nacre-gold);
}

/* Workspace Layout (Asymmetric 12-Column Grid) */
.workspace-grid {
    flex-grow: 1;
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 3.5rem;
    padding: 2.5rem 0;
    height: calc(100% - 6rem);
}

/* Left Workspace Panel: Seating Wizard */
.engine-panel {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    height: 100%;
    overflow-y: auto;
    padding-right: 1.5rem;
}

/* Scrollbar styling */
.engine-panel::-webkit-scrollbar {
    width: 4px;
}
.engine-panel::-webkit-scrollbar-track {
    background: transparent;
}
.engine-panel::-webkit-scrollbar-thumb {
    background: var(--nacre-travertine-border);
    border-radius: 2px;
}

.brand-block {
    margin-bottom: 1.5rem;
}
.brand-title {
    font-family: var(--nacre-font-serif);
    font-size: 2.5rem;
    font-weight: 300;
    letter-spacing: 0.25em;
    line-height: 1.1;
    color: var(--nacre-bronze);
}
.brand-subtitle {
    font-size: 0.65rem;
    letter-spacing: 0.3em;
    color: var(--nacre-limestone);
    margin-top: 0.25rem;
}

/* Segmented Step Progress Bar */
.progress-bar-container {
    display: flex;
    border-bottom: 1px solid var(--nacre-travertine-border);
    margin-bottom: 2rem;
    padding-bottom: 0.5rem;
}
.progress-segment {
    flex: 1;
    font-size: 0.65rem;
    letter-spacing: 0.12em;
    color: var(--nacre-limestone);
    padding: 0.5rem 0;
    position: relative;
    font-weight: 600;
    transition: var(--nacre-white) var(--transition-fast);
}
.progress-segment.active {
    color: var(--nacre-bronze);
}
.progress-segment.active::after {
    content: '';
    position: absolute;
    bottom: -0.5rem;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--nacre-bronze);
}

/* Wizard Steps Transitions */
.wizard-step {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    flex-grow: 1;
}
.wizard-step.active {
    display: flex;
}

.step-title {
    font-family: var(--nacre-font-serif);
    font-size: 1.75rem;
    font-weight: 400;
    letter-spacing: 0.05em;
    color: var(--nacre-bronze);
    text-transform: uppercase;
}
.step-desc {
    font-size: 0.85rem;
    color: var(--nacre-bronze-muted);
    margin-top: 0.5rem;
    margin-bottom: 2rem;
    line-height: 1.5;
}

/* Calibration Inputs (Step 1) */
.calibration-controls {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    flex-grow: 1;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}
.input-label {
    font-size: 0.65rem;
    letter-spacing: 0.2em;
    font-weight: 600;
    color: var(--nacre-limestone);
}

/* Guest Selector Button Array */
.guest-selector {
    display: flex;
    gap: 0.5rem;
}
.guest-btn {
    flex: 1;
    height: 2.75rem;
    background-color: transparent;
    border: 1px solid var(--nacre-travertine-border);
    color: var(--nacre-bronze);
    font-family: var(--nacre-font-sans);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-fast);
}
.guest-btn:hover {
    border-color: var(--nacre-bronze);
}
.guest-btn.active {
    background-color: var(--nacre-bronze);
    color: var(--nacre-white);
    border-color: var(--nacre-bronze);
}

/* Bespoke Calendar Grid */
.bespoke-calendar {
    border: 1px solid var(--nacre-travertine-border);
    padding: 1rem;
    background-color: rgba(255, 255, 255, 0.15);
}
.calendar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}
.cal-nav-btn {
    background: none;
    border: none;
    color: var(--nacre-bronze);
    font-size: 1.1rem;
    cursor: pointer;
    padding: 0 0.5rem;
}
.calendar-title {
    font-size: 0.75rem;
    letter-spacing: 0.15em;
    font-weight: 600;
}
.calendar-weekdays {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    text-align: center;
    font-size: 0.6rem;
    letter-spacing: 0.1em;
    color: var(--nacre-limestone);
    margin-bottom: 0.5rem;
    font-weight: 600;
}
.calendar-days {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 2px;
}
.cal-day {
    aspect-ratio: 1.2;
    background: none;
    border: none;
    font-family: var(--nacre-font-sans);
    font-size: 0.75rem;
    color: var(--nacre-bronze);
    cursor: pointer;
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}
.cal-day:hover:not(.disabled) {
    background-color: rgba(42, 39, 36, 0.05);
}
.cal-day.active {
    background-color: var(--nacre-bronze) !important;
    color: var(--nacre-white) !important;
    font-weight: 600;
}
.cal-day.disabled {
    color: rgba(42, 39, 36, 0.15);
    cursor: not-allowed;
}
.cal-day.today {
    border: 1px solid var(--nacre-bronze);
}

/* Time Slot Chips Grid */
.time-slots-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.5rem;
}
.time-chip {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 0.5rem;
    background-color: transparent;
    border: 1px solid var(--nacre-travertine-border);
    cursor: pointer;
    transition: var(--transition-fast);
}
.time-chip:hover {
    border-color: var(--nacre-bronze);
}
.time-chip.active {
    background-color: var(--nacre-bronze);
    color: var(--nacre-white);
    border-color: var(--nacre-bronze);
}
.chip-time {
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.05em;
}
.chip-meta {
    font-size: 0.55rem;
    letter-spacing: 0.1em;
    color: var(--nacre-limestone);
    margin-top: 0.2rem;
}
.time-chip.active .chip-meta {
    color: rgba(250, 249, 246, 0.6);
}

/* Wizard Seating Blueprint Elements (Step 2) */
.zone-legend {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1.5rem;
    padding: 0.75rem;
    background-color: rgba(255, 255, 255, 0.2);
    border: 1px solid var(--nacre-travertine-border);
}
.legend-item {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
}
.legend-color {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    margin-top: 2px;
}
.terrasse-color { background-color: var(--nacre-gold); }
.salon-color { background-color: var(--nacre-limestone); }
.alcove-color { background-color: var(--nacre-bronze); }
.legend-name {
    font-size: 0.65rem;
    letter-spacing: 0.1em;
    font-weight: 600;
    display: block;
}
.legend-meta {
    font-size: 0.55rem;
    color: var(--nacre-bronze-muted);
    display: block;
}

/* Blueprint Viewport */
.blueprint-viewport {
    width: 100%;
    background-color: var(--nacre-sand-deep);
    border: 1px solid var(--nacre-bronze);
    padding: 0.5rem;
    aspect-ratio: 800 / 450;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}
.seating-blueprint {
    width: 100%;
    height: 100%;
}

/* Interactive SVG Table Styling */
.svg-table {
    cursor: pointer;
}
.svg-table rect {
    fill: var(--nacre-sand-light);
    stroke: var(--nacre-bronze);
    stroke-width: 1.5px;
    transition: fill var(--transition-fast), stroke var(--transition-fast);
}
.svg-table text {
    font-family: var(--nacre-font-sans);
    font-size: 9px;
    font-weight: 600;
    fill: var(--nacre-bronze);
    text-anchor: middle;
    pointer-events: none;
}
.svg-table .chair {
    fill: var(--nacre-sand-deep);
    stroke: var(--nacre-bronze);
    stroke-width: 1px;
    transition: fill var(--transition-fast);
}

/* Seating blueprint hover and selection states */
.svg-table:hover rect {
    fill: var(--nacre-gold-muted);
    stroke: var(--nacre-gold);
}
.svg-table:hover .chair {
    fill: var(--nacre-gold-muted);
}
.svg-table.active rect {
    fill: var(--nacre-gold) !important;
    stroke: var(--nacre-bronze) !important;
}
.svg-table.active text {
    fill: var(--nacre-bronze) !important;
}
.svg-table.active .chair {
    fill: var(--nacre-bronze) !important;
    stroke: var(--nacre-bronze) !important;
}

/* SVG Blueprint disabled (occupied / capacity mismatch) */
.svg-table.disabled {
    cursor: not-allowed;
    opacity: 0.25;
}
.svg-table.disabled rect {
    fill: rgba(42, 39, 36, 0.05) !important;
    stroke: rgba(42, 39, 36, 0.2) !important;
}
.svg-table.disabled .chair {
    fill: transparent !important;
    stroke: rgba(42, 39, 36, 0.2) !important;
}

/* Telemetry Blueprint Feed Panel */
.blueprint-feed {
    margin-top: 1rem;
    border: 1px solid var(--nacre-travertine-border);
    font-family: monospace;
    font-size: 0.65rem;
    background-color: rgba(255, 255, 255, 0.1);
}
.feed-header {
    background-color: var(--nacre-sand-deep);
    border-bottom: 1px solid var(--nacre-travertine-border);
    padding: 0.35rem 0.75rem;
    font-weight: 600;
    letter-spacing: 0.1em;
}
.feed-body {
    padding: 0.5rem 0.75rem;
    color: var(--nacre-bronze-muted);
    line-height: 1.4;
    min-height: 2.2rem;
}

/* Intake Form Inputs (Step 3) */
.intake-form {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    flex-grow: 1;
}
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}
.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}
.form-group input, 
.form-group textarea {
    background-color: transparent;
    border: 1px solid var(--nacre-travertine-border);
    color: var(--nacre-bronze);
    padding: 0.75rem;
    font-family: var(--nacre-font-sans);
    font-size: 0.85rem;
    transition: border-color var(--transition-fast);
    outline: none;
}
.form-group input:focus, 
.form-group textarea:focus {
    border-color: var(--nacre-bronze);
}
.form-group input::placeholder, 
.form-group textarea::placeholder {
    color: var(--nacre-limestone);
    opacity: 0.6;
}
.form-checkbox {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    font-size: 0.75rem;
    color: var(--nacre-bronze-muted);
    line-height: 1.4;
    cursor: pointer;
    margin-top: 0.5rem;
}
.form-checkbox input {
    margin-top: 3px;
    accent-color: var(--nacre-bronze);
}
.required {
    color: var(--nacre-gold);
}

/* Step Action Buttons (Footer block) */
.step-actions {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--nacre-travertine-border);
}
.action-btn {
    height: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    text-transform: uppercase;
    font-family: var(--nacre-font-sans);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    cursor: pointer;
    transition: var(--transition-standard);
    border: 1px solid var(--nacre-bronze);
}
.next-btn {
    flex: 2;
    background-color: var(--nacre-bronze);
    color: var(--nacre-white);
}
.next-btn:hover:not(:disabled) {
    background-color: var(--nacre-sand-light);
    color: var(--nacre-bronze);
}
.next-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}
.prev-btn {
    flex: 1;
    background-color: transparent;
    color: var(--nacre-bronze);
}
.prev-btn:hover {
    background-color: rgba(42, 39, 36, 0.05);
}

/* Guest Reservation Certificate Layout (Step 4) */
.certificate-wrap {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    flex-grow: 1;
    padding: 1rem 0;
}
.nacre-certificate {
    width: 100%;
    max-width: 500px;
    background-color: #FAF6F0; /* Pure elegant paper tint */
    color: var(--nacre-bronze);
    padding: 1.25rem;
    position: relative;
    box-shadow: 0 15px 35px rgba(42, 39, 36, 0.06);
    border: 1px solid var(--nacre-bronze);
    overflow: hidden;
}
.cert-watermark {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) rotate(-12deg);
    font-family: var(--nacre-font-serif);
    font-size: 7.5rem;
    color: rgba(201, 175, 132, 0.04);
    pointer-events: none;
    font-weight: 300;
    letter-spacing: 0.1em;
}
.cert-border-outer {
    border: 1px solid rgba(42, 39, 36, 0.15);
    padding: 0.25rem;
}
.cert-border-inner {
    border: 1px solid rgba(42, 39, 36, 0.05);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.cert-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    border-bottom: 1px solid var(--nacre-bronze);
    padding-bottom: 0.75rem;
}
.cert-logo-block {
    display: flex;
    flex-direction: column;
}
.cert-brand {
    font-family: var(--nacre-font-serif);
    font-size: 1.5rem;
    font-weight: 300;
    letter-spacing: 0.15em;
    line-height: 1;
}
.cert-location {
    font-size: 0.5rem;
    letter-spacing: 0.2em;
    color: var(--nacre-limestone);
    margin-top: 0.2rem;
}
.cert-coordinate-block {
    display: flex;
    flex-direction: column;
    text-align: right;
    font-family: monospace;
    font-size: 0.55rem;
    color: var(--nacre-limestone);
    gap: 0.15rem;
}

.cert-body {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}
.cert-statement {
    font-size: 0.65rem;
    letter-spacing: 0.15em;
    font-weight: 600;
    text-align: center;
    color: var(--nacre-limestone);
    border-bottom: 1px dashed rgba(42, 39, 36, 0.1);
    padding-bottom: 0.5rem;
}
.cert-table-data {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}
.cert-row {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
}
.cert-label {
    color: var(--nacre-limestone);
    font-size: 0.65rem;
    letter-spacing: 0.05em;
}
.cert-value {
    font-weight: 500;
    text-align: right;
}
.cert-highlight {
    font-family: monospace;
    font-weight: 600;
    letter-spacing: 0.05em;
    color: var(--nacre-gold);
}
.cert-code {
    font-family: monospace;
    font-size: 0.65rem;
    color: var(--nacre-bronze-muted);
}

.cert-footer {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    border-top: 1px solid rgba(42, 39, 36, 0.1);
    padding-top: 1rem;
    font-size: 0.5rem;
    letter-spacing: 0.1em;
    color: var(--nacre-limestone);
}
.cert-seal {
    font-weight: 600;
    border: 1px solid rgba(156, 146, 132, 0.3);
    padding: 0.25rem 0.5rem;
    text-transform: uppercase;
}
.cert-signature-line {
    width: 100px;
    height: 1px;
    background-color: rgba(42, 39, 36, 0.3);
    margin-bottom: 0.25rem;
}
.cert-signature-label {
    font-size: 0.45rem;
    text-align: right;
}

/* Right Panel: Cinematic Showcase Slideshow */
.showcase-panel {
    border-left: 1px solid var(--nacre-travertine-border);
    padding-left: 3.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
}
.showcase-frame {
    width: 100%;
    height: 100%;
    background-color: var(--nacre-sand-deep);
    border: 1px solid var(--nacre-bronze);
    position: relative;
    overflow: hidden;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
}
.showcase-coordinates {
    position: absolute;
    top: 1.5rem;
    left: 1.5rem;
    font-family: monospace;
    font-size: 0.65rem;
    letter-spacing: 0.1em;
    color: var(--nacre-sand-light);
    z-index: 5;
    background-color: rgba(42, 39, 36, 0.7);
    padding: 0.25rem 0.5rem;
}

.showcase-slider {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}
.showcase-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 800ms cubic-bezier(0.4, 0, 0.2, 1);
}
.showcase-slide.active {
    opacity: 1;
}
.showcase-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(0.65) contrast(1.05);
}

/* Beautiful Editorial Overlays */
.showcase-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 2.5rem 2rem;
    background: linear-gradient(to top, rgba(42, 39, 36, 0.9) 0%, rgba(42, 39, 36, 0.4) 60%, transparent 100%);
    color: var(--nacre-white);
    z-index: 2;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}
.caption-zone {
    font-size: 0.6rem;
    letter-spacing: 0.25em;
    color: var(--nacre-gold);
    font-weight: 600;
}
.caption-title {
    font-family: var(--nacre-font-serif);
    font-size: 1.75rem;
    font-weight: 300;
    letter-spacing: 0.05em;
    line-height: 1.2;
}
.caption-desc {
    font-size: 0.8rem;
    color: rgba(250, 249, 246, 0.75);
    line-height: 1.5;
    font-weight: 300;
    max-width: 90%;
}

/* Slideshow Navigation Dots */
.showcase-nav {
    position: absolute;
    right: 1.5rem;
    top: 1.5rem;
    z-index: 5;
    display: flex;
    gap: 0.5rem;
}
.showcase-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background-color: rgba(250, 249, 246, 0.3);
    border: none;
    cursor: pointer;
    transition: var(--transition-fast);
}
.showcase-dot:hover {
    background-color: var(--nacre-white);
}
.showcase-dot.active {
    background-color: var(--nacre-gold);
    transform: scale(1.3);
}

/* Footer Telemetry Coordinates */
.atelier-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid var(--nacre-travertine-border);
    padding-top: 1rem;
    font-size: 0.6rem;
    letter-spacing: 0.15em;
    color: var(--nacre-limestone);
    font-weight: 500;
}

/* Printing styles for Digital Certificate */
@media print {
    body * {
        visibility: hidden;
    }
    .certificate-wrap, .certificate-wrap * {
        visibility: visible;
    }
    .certificate-wrap {
        position: absolute;
        left: 0;
        top: 0;
        width: 100%;
        height: auto;
        box-shadow: none;
        padding: 0;
    }
    .nacre-certificate {
        box-shadow: none;
        border: 1px solid #000;
    }
}

/* Responsive Adaptations */
@media (max-width: 1024px) {
    body {
        overflow-y: auto;
        height: auto;
        padding: 1rem;
    }
    .atelier-container {
        height: auto;
        padding: 1.5rem;
    }
    .workspace-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
        height: auto;
    }
    .showcase-panel {
        border-left: none;
        padding-left: 0;
        aspect-ratio: 16/10;
        height: 350px;
    }
    .grid-frame {
        display: none;
    }
}

@media (max-width: 640px) {
    .brand-title {
        font-size: 2rem;
    }
    .form-row {
        grid-template-columns: 1fr;
    }
    .time-slots-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .progress-segment {
        font-size: 0.5rem;
    }
}